This circuit for generating precise reference signals was found in the April 1973 issue of Radio Electronics magazine. The circuit generates 100 kHz signals according to the crystal used.
This small regulator was found in a Motorola 1968’s documentation. It is a current regulator using...
This circuit was found in a 1968 US publication. Transistors used are uncommon today. The circuit...
This electronic bait, or fish attractor, produces a sound in the water that attracts fish of...